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* rule: add flag to display rule handle as commentEric Leblond2013-05-311-0/+1
| | | | | | | | | | | Knowing the rule handle is necessary to be able to delete a single rule. It was not displayed till now in the output and it was thus impossible to remove a single rule. This patch modify the listing output to add a comment containing the handle when the -a/--handle flag is provided. Signed-off-by: Eric Leblond <eric@regit.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* cli: complete basic functionality of the interactive modePablo Neira Ayuso2013-05-191-1/+3
| | | | | | | | | | This patch adds missing code to get basic interactive mode operative via `nft -i', including parsing, evaluation, command execution via netlink and error reporting. Autocomplete is not yet implemented. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* cmd/netlink: make sure we always have a location in netlink operationsPatrick McHardy2013-04-182-18/+40
| | | | | | Improve error reporting by always using a location in netlink operations. Signed-off-by: Patrick McHardy<kaber@trash.net>
* expr: fix concat expression type propagationPatrick McHardy2013-04-181-0/+9
| | | | | Dynamically instantiate a data type to represent all types of a concatenation and use that for type propagation.
* types: add ethernet address typePatrick McHardy2013-04-181-0/+3
| | | | | | | | Add a new type for ethernet addresses. This is needed since for concatenations we need fixed sized data types, the generic link layer address doesn't have a fixed length. Signed-off-by: Patrick McHardy <kaber@trash.net>
* expr: kill EXPR_F_PRIMARYPatrick McHardy2013-04-151-10/+3
| | | | | | Not used anymore, kill it. Signed-off-by: Patrick McHardy <kaber@trash.net>
* rule: add rule insertion (prepend) supportPatrick McHardy2012-12-142-1/+3
| | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
* chains: add chain rename supportPatrick McHardy2012-12-142-0/+6
| | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
* rules: change rule handle to 64 bitPatrick McHardy2012-12-091-1/+1
| | | | | | Recent kernel versions are using 64 bit for the rule handle. Signed-off-by: Patrick McHardy <kaber@trash.net>
* segtree: fix segtree to properly support mappingsPatrick McHardy2012-12-081-1/+1
| | | | | | | Requires to use proper types for keys and data and using the key values for reverse transformation. Signed-off-by: Patrick McHardy <kaber@trash.net>
* debug: include verbose message in all BUG statementsroot2012-12-081-1/+5
| | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
* expression: Differentiate expr among anonymous structures in struct exprTomasz Bursztyka2012-08-031-2/+2
| | | | | | | This fixes compilation with gcc-4.7 Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* netlink: fix creation of base chains with hooknum and priority 0Patrick McHardy2010-07-061-0/+11
| | | | | | | | Base chains with both a hook number and priority of zero are created as regular chains. Fix by adding a BASECHAIN flag indicating that the chain should be created as a base chain. Signed-off-by: Patrick McHardy <kaber@trash.net>
* debug: properly parse debug levelsPatrick McHardy2010-07-061-1/+4
| | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
* payload: add DCCP packet type definitionsPatrick McHardy2009-07-283-0/+17
| | | | | | | | | | | | | | | | | | | # nft describe dccp type payload expression, datatype dccp_pkttype (DCCP packet type) (basetype integer), 4 bits pre-defined symbolic constants: request 0x0 response 0x1 data 0x2 ack 0x3 dataack 0x4 closereq 0x5 close 0x6 reset 0x7 sync 0x8 syncack 0x9 Signed-off-by: Patrick McHardy <kaber@trash.net>
* debug: allow runtime control of debugging outputPatrick McHardy2009-07-281-0/+5
| | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
* add support for new set API and standalone setsPatrick McHardy2009-07-284-56/+421
| | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
* expressions: kill seperate sym_type datatype for symbolsPatrick McHardy2009-04-011-2/+1
| | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
* datatype: add/move size and byte order information into data typesPatrick McHardy2009-03-311-5/+7
| | | | | | | | | | Add size and type information to non-basetype types and remove the now redundant information from the symbol tables. This will be used to determine size and byteorder of set members without analyzing the ruleset for incremental update operations. Signed-off-by: Patrick McHardy <kaber@trash.net>
* datatype: maintain table of all datatypes and add registration/lookup functionPatrick McHardy2009-03-311-1/+9
| | | | | | | | | | | Add a table containing all available datatypes and registration/lookup functions. This will be used to associate a stand-alone set in the kernel with the correct type without parsing the entire ruleset. Additionally it would now be possible to remove the global declarations for the core types. Not done yet though. Signed-off-by: Patrick McHardy <kaber@trash.net>
* netlink: move data related functions to netlink.cPatrick McHardy2009-03-311-0/+11
| | | | | | | Move the data related function to netlink.c as they're going to be needed outside of rule context for set maintenance. Signed-off-by: Patrick McHardy <kaber@trash.net>
* ct: resync netlink header and properly add ct l3protocol supportPatrick McHardy2009-03-311-3/+4
| | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
* Release scopes during cleanupPatrick McHardy2009-03-201-0/+1
| | | | | | Properly release the user-defined symbols. Signed-off-by: Patrick McHardy <kaber@trash.net>
* expr: add support for cloning expressionsPatrick McHardy2009-03-201-0/+3
| | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
* Add support for user-defined symbolic constantsPatrick McHardy2009-03-201-0/+2
| | | | | | | | | | | | | | | | | | User-defined constants can be used like this: define allowed_hosts = { 192.168.0.0/24, 10.0.0.20-10.0.0.30 } define udp_services = domain define tcp_services = { ssh, domain } ip saddr $allowed_hosts udp dport $udp_services counter accept ip saddr $allowed_hosts tcp dport $tcp_services counter accept Recursive definitions are possible, but currently not fully handled. Anything requiring transformations (sets using ranges) can not be used more than once currently since the expressions need to be COW'ed previously. Signed-off-by: Patrick McHardy <kaber@trash.net>
* Add support for scoping and symbol bindingPatrick McHardy2009-03-202-0/+41
| | | | | | | | | | | | As a first step towards stand-alone sets, add support for scoping and binding symbols. This will be used for user-defined constants, as well as declarations of modifiable (stand-alone) sets once the kernel side is ready. Scopes are currently limited to three nesting levels: the global scope, table block scopes and chain block scopes. Signed-off-by: Patrick McHardy <kaber@trash.net>
* Fix use of reserved names in header sandwichPatrick McHardy2009-03-1816-48/+48
| | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
* Initial commitv0.01-alpha1Patrick McHardy2009-03-1826-0/+3259
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